If you look at the exemptions - telecomms, in body medical etc, it is
obvious that a well informed engineer/s had an input to the legislation and
that the same engineer/s had some serious doubts about potential reliability
of products produced lead free........here is my offering.
To the tune of "wild rover"
I went to a CM who builds PCB
And he told me he only manufactures lead free
I asked about quality he answered "OK"
Theres ten million cell phones being used every day
And its no nay never...............no nay never no more
Will the brakes on my car work no never no more
I called in the tow truck to bring it on in
But the boards in my cell phone had only used tin
I tried and I tried but the call was one way
And I've been stuck on the freeway for most of the day.
And its no nay never....no nay never no more
Will the brakes on my car work no never no more
So Eu poloticians please listen to me
Give me brakes in my car with good reliability
You never will get it by taking out lead
Just pray that when YOU brake you won't end up dead
And its no nay never....no nay never no more
Will the brakes on my car work no never no more
Can you hear me now??????????????????
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]]On Behalf Of Pratap Singh
Sent: Friday, September 30, 2005 7:30 PM
To: [log in to unmask]
Subject: [LF] RoHS & WEEE fun Poem
The following is dedicated to all struggling LF process engineers across
the world.
(Here is edited & spell proofed version 1.01). Enjoy.
RoHS & WEEE
Oh! RoHS and WEEE,
Why did this path to Lead-Free?
What a mess you have created,
All our Tin-Lead expertise negated.
How dare EU underlings accept?
Lead-free is better than tin-lead concept.
Everything has to change all over again
SMT, wave solder, my rework fountain.
Flux, specifications and reliability test.
It has going me banana with no rest.
What my company will do on July 1, 2006
As a process engineer, I am in a terrible fix.
Japanese were smart, they started early
Their lead-free is working fine not poorly.
Only a year is left, who I should consult.
Web sites are full of opinions, no solid results.
Finally I started on LF process, on my own.
My manager insists on Japanese process clone.
New profiles, SAC solders and equipment upgrade.
Higher reflow, hi-temp fluxes and consultant's aid.
My LF process is giving me an average yield.
It was tough going believe me, a hard task indeed.
LF joints are not pretty, with shrinkage cracks.
But boards pass ICT test, said test engineer Jack.
What about LF Reliability, my manager inquired.
It depends upon application, reliability declared.
It is all politics; Lead does no harm to anybody.
Scientists & engineers opined in a fit of parody.
EU has some green eyed enviro politicians.
Who dictate the world thru lead-free dominion?
_____________________
pratap singh
Tel./Fax: (512) 255-6820
email: [log in to unmask]
www.rampinc.com
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